Hand driven device



Jan. 4, 1949. R. BUJAN HAND DRIVEN DEVICE 2 Sheets-Sheet 1 Filed Jply 26, 1946 All i: fl

. RAY/140M BUJAA/ INVENTOR.

ATTORNEY" Jan. 4, 1949 R. BUJAN 2,453,248

' HAND DRIVEN DEv IcE Filed July 26, 1946 "2 sheets-sheet 2 53 \ll fli'IIII/Yi EAVMON 5 UJAN INVENTOR.

Patented Jan. 4, 1949 UNITED STATES PATENT OFFICE 2 Claims.

This invention relates generally to a hand driven fan, but more specifically to a hand driven mechanism arranged for rotating a shaft.

The main object of the invention resides in the provision of the combination of such a type of mechanism with a, cooperating housing therefor.

Another object of the invention resides in the provision of a mechanism operable by finger movement to impart rotary motion to a shaft having a fan or similar attachment secured thereto.

A further object of the invention resides in the provision of a device of the character described and characterized by being noiseless in operation.

Another object of the invention resides in the provision of a durable, strong and eflicient hand driven device for fan operation which device is economical to manufacture and aesthetic in appearance.

These objects and other incidental ends and advantages of the invention will hereinafter appear in the progress of the disclosure and as pointed out in the appended claims.

Accompanying this specification are drawings showing a preferred form of the invention wherein corresponding reference characters designate corresponding parts throughout the several views and wherein:

Figure 1 is a plan view of an open ended housing member showing the location of openings to mount the mechanism of the device.

Figure 2 is a longitudinal sectional view taken along the plane 2-2 of Figure 1.

Figure 3 is a plan view with the mechanism of the device mounted in the housing and showing the actuating rack in uppermost position.

Figure 4 is a plan view of the mechanism shown in Figure 3 showing the actuating rack in depressed and lowermost position.

Figure 5 is a longitudinal sectional view taken along the plane 5--5 of Figure 3.

Figure 6 is a transverse sectional view taken along the plane 6-6 of Figure 3.

Figure 7 is a side view in elevation partly broken away and partly sectioned showing the assembly of the housing, the mechanism mounted therein of the housing cover member.

Figure 8 is a view in perspective showing a fan attachment actuated by the hand driven mechanism.

In accordance with the invention and the preferred form shown in the drawings a main housing generally indicated by numeral I0 is provided and as shown is in the form of a cap member having a bottom wall H and a cylindrical side wall l2. The upper face of bottomwall H is provided with a diametrically disposed rectangularly shaped raised portion or strip I3, both the strip and the bottom wall l2 being provided with a recess and openings for the mounting of the mechanism as will hereinafter appear. In addition the cylindrical wall I2 is also formed with a notch I9 to permit freedom of reciprocation of one of the members of the mechanism as will also hereinafter appear. It is to be observed that housing It! is constructed in a mannerwhereby it may be cast from one piece of material such as metal, plastic or other suitable substance.

In bottom wall H and on strip l3 are openings I' l, l5, H and 18 for rivets used to fasten the mechanism to the housing ID. A recess I6 is formed centrally of bottom wall ll passing through strip I3 to serve as the lower bearing for a rotatable shaft hereinafter to be described.

A notch I9 is provided in circular wall l2 for reciprocation therethrough of an operable memher for the device such as a rack 29 in the form of an inverted U-shaped element having legs 30 and 3|, the said rack having a finger engaging boss 32 at the top thereof and a series of teeth 33 along the lower half of the external side of one of the rack legs 30 to engage a pinion 31 as will hereinafter appear.

Mounting means for the mechanism include a bracket 20 spaced from and secured to housing wall II by means of an upright 2|, the said upright being secured to wall ll through openings [5 as by rivets 22 and 23, respectively. Intermediate bracket 20 is an opening 24 and at the bracket end is another opening 25. Beneath bracket 20 is a plate 26 superposing and secured to strip l3 as by rivets 21 and 28, the rivets passing through the strip openings [1 and I8. Plate 26 is also provided with an intermediate opening 26a. in registration with bracket opening 24 and recess 16. It will now be seen how bracket 20, strip l3 and plate 26 in conjunction with housing wall I I serve as the mounting means for the hand operable rack 29 acting on a train of gears to effectuate a unidirectional rotary movement of a shaft 4| to which may be attached fan blades 48 or" other mechanism adapted to be driven by shaft 4 Thus, a gear 35 having teeth 34 is secured to the upper end of a shaft 36, the shaft 36 being rotatably mounted between bracket opening and wall opening I 4. Rotatably mounted on shaft 36 between the undersurface of gear and the inner face of housing wall II is a pinion 31 carrying an enlarged ratchet wheel 38 at the top, the teeth of said ratchet wheel being engageable by a pawl 39 secured to the underside of gear 35 as by a pivot 40 as best seen in Figure 5.

The shaft 4| which is rotatably mounted between bracket opening 24, plate opening 26a and bearing recess [6 has formed therewith a pinion 4'2 below bracket 20 to engage with teeth 34 of gear 35 as best seen in Figure 5.

To ma nt in r ck 29 in nqri ially ext n ed position, a compression spring 43 is secured at one endto' a lug 44 at the upper edge of plate 26 and at the other end is secured to a screw 55 engaging rack leg 3| adjacent the end thereof.

Upon finger compression on rack boss ,3; against the force of spring 43, teeth 3 3 on rack leg 30 causes rotation of pinion 31 in a clockwise direction, said movement beingtranslated tpgear 35 by engagement between a tooth of ratchet 38 and the pawl 39. Shaft 41 is thereby made to rotate in a counterclockwise direction by the engagement between gear teet 3.4 and h Shaft pinionA-Z. Upon release of pressure on boss 32, .SPri-ng .413 forces the rack to return .to normal extended position, :the counterclockwise move: mentof pinion 31.? not "being translated to gear teeth .Sdvbecause of the sliding engagement be.- tween the ratchet '38 and the awl-3,9. Thus, on the return movement of rack 29, shaftitl .does not rotate. It becomes obvious thatby repeating @the downward thrusts on rack boss 32, shaft. roe tates intermittently in a counterclockwise direction onl-y. i

It is to be observed-that the s-ide1edges0f strip J 3 engaging the inner edges of rack legs Blend :31 and the inner andupper faces of plate 26 and wall M, respectively, engaging the upper and lower :faces of the legs 30 and 13! maintain the axial motion of the reciprocable rack in the same plane.

Moreover, edge 29a of rack-29 engages :-the=upper edge of strip 13 to serve "as a stop fordown- Ward motion of the rack, while screw 45 engages one of the lateral shoulders 26a of plate 2-6 to serve as a stop for the upward motion ofthe rack.

A cover member 4-? is suitably secured as by an adhesive to thefree edge of the cylindrical -wall :I'2 to conceal the mechanism as seen in Figures 7 and 8, the rack 29 protruding from-wall l-2 through the slot 1-9. As shown, thequter end of'r-aok 29 ;may be'provi'ded with -an opening 46 for securing the assembly to a string or chain forearryingpurposes.

-I-wish it understood that minor changes ,and variations in the integration, location, material and su-bstitutionof parts may allbe resorted to r without departin gfrom the spirit of theinvention and the scope of the appended claims.

"I claim: T i

1. In a hand-driven device, a frame comprising a casing, a bottom wall therefor provided with an integral guide ridge, a hand-actuated rack member slid-ably engaging said bottom wall and the side walls of said ridge to be guided thereby, a side wall, connected to the casing penetrated by said rack member, a top bearin plate for said rack member secured to the casing bottom wall and the ridge thereof, a bracket secured to said pas ing bottom wall andextending at en angle to the guideridge and elevated therefrom, a central rotatable shaft projecting above the casing and mounted between the bracket and the casing bottornall and journalled in the guide ridge thereof, a second rotatable shaft mounted between the :bracket andthe casing bottom wall, gear and pin- ,lon ,rnea n sv on and operatively connecting said shafts, ratchet means on one of the shafts, a cover member for said casing penetrated by the central shaft, spring means between the rack and a sta o a y o ti f th t9 norma maintain the rack i outermo t ext nd metion bey ,d the casing side wall, the downward ov nt of thesaid aekaemetiz ig the gear a Pin- 91 ans to 51159 l et o o th tal shaft an the re ur q owa dmovem n aid eek be e on r t r an he awh i me n 9 e ing the central shaft stationary.

112. In a and+-sir r n de ma E em? s mlfi ins-a ea ng, a bottom wa l there o R 1 d mth ari integral guide ridge, a hand-actuated rack membe sl da y engag n a d bp iomewa a th ide W ll o a d r es t beg de th y, a side wal enetra b lth rack :mem h a in gla e o field ack m mber se J om and i s 'ihe e i ib e K9,? se ured to sa t o M1 a d pne side of 1, 9 rid e d vir ti e the ridge at an ele ated location thereover, a central'rotatable shaft pro:- Ject n a o th a i a mou ted b we th racket an bo m Wall and ioiima le n th idg the e f a .s g s reteta l l ha tween the bracket and the bottom wall, a gear train be e th Shafts a at ble PY-d WQWW easement th re k t au e nflat o ref the en ra sh t nde ng. mean betweeetaen qk and a stationar po i n o t e ra e t 4 mally maintain the rack in outermost ,eg tn;d,e d psitiqabe ond he a ines plew l I a T :ibEFrERENGES :CL'I ED The following references are ot ,in the sfi-le 9 P51191313? antigen rsrairns PATENTS Number 

